Module: Vers::SemverVersion

Extended by:
SemverVersion
Included in:
SemverVersion
Defined in:
lib/vers/semver_version.rb

Defined Under Namespace

Classes: Parsed

Instance Method Summary collapse

Instance Method Details

#compare(left, right) ⇒ Object 



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# File 'lib/vers/semver_version.rb', line 11

def compare(left, right)
  parsed_left = parse(left)
  parsed_right = parse(right)
  return left <=> right unless parsed_left && parsed_right

  parsed_left.core.zip(parsed_right.core).each do |left_part, right_part|
    comparison = VersionComparison.compare_numbers(left_part, right_part)
    return comparison unless comparison.zero?
  end

  compare_prerelease(parsed_left.prerelease, parsed_right.prerelease)
end

#compare_identifier(left, right) ⇒ Object 



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# File 'lib/vers/semver_version.rb', line 115

def compare_identifier(left, right)
  left_numeric = VersionComparison.numeric?(left)
  right_numeric = VersionComparison.numeric?(right)
  return -1 if left_numeric && !right_numeric
  return 1 if !left_numeric && right_numeric

  if left_numeric
    VersionComparison.compare_numbers(left, right)
  else
    left <=> right
  end
end

#compare_prerelease(left, right) ⇒ Object 



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# File 'lib/vers/semver_version.rb', line 98

def compare_prerelease(left, right)
  return 0 if left.empty? && right.empty?
  return 1 if left.empty?
  return -1 if right.empty?

  left_parts = left.split(".", -1)
  right_parts = right.split(".", -1)
  left_parts.zip(right_parts).each do |left_part, right_part|
    return 1 if right_part.nil?

    comparison = compare_identifier(left_part, right_part)
    return comparison unless comparison.zero?
  end

  left_parts.length <=> right_parts.length
end

#normalize(value, preserve_v: false) ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'lib/vers/semver_version.rb', line 76

def normalize(value, preserve_v: false)
  string = value.to_s.strip
  parsed = parse(string)
  raise ArgumentError, "Invalid semantic version: #{value}" unless parsed && valid?(string)

  result = parsed.core.map { |part| VersionComparison.normalize_number(part) }.join(".")
  result = "v#{result}" if preserve_v && string.start_with?("v")
  unless parsed.prerelease.empty?
    prerelease = parsed.prerelease.split(".").map do |part|
      VersionComparison.numeric?(part) ? VersionComparison.normalize_number(part) : part
    end
    result += "-#{prerelease.join(".")}"
  end
  result += "+#{parsed.build}" unless parsed.build.empty?
  result
end

#parse(value) ⇒ Object 



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# File 'lib/vers/semver_version.rb', line 24

def parse(value)
  string = value.to_s.strip
  index = string.start_with?("v") ? 1 : 0
  core = []

  3.times do |part|
    start = index
    index += 1 while index < string.length && string.getbyte(index).between?(48, 57)
    return nil if index == start

    core << string[start...index]
    break unless index < string.length && string.getbyte(index) == 46
    return nil if part == 2

    index += 1
  end

  core << "0" while core.length < 3
  prerelease = ""
  build = ""

  if index < string.length && string.getbyte(index) == 45
    start = index + 1
    index = start
    index += 1 while index < string.length && string.getbyte(index) != 43
    return nil if index == start

    prerelease = string[start...index]
  end

  if index < string.length && string.getbyte(index) == 43
    index += 1
    return nil if index == string.length || string[index..].include?("\n")

    build = string[index..]
    index = string.length
  end

  return nil unless index == string.length

  Parsed.new(core.freeze, prerelease, build)
end

#prerelease?(value) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/vers/semver_version.rb', line 93

def prerelease?(value)
  parsed = parse(value.to_s.strip)
  parsed && !parsed.prerelease.empty?
end

#valid?(value) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/vers/semver_version.rb', line 67

def valid?(value)
  parsed = parse(value.to_s.strip)
  return false unless parsed

  [parsed.prerelease, parsed.build].all? do |field|
    field.empty? || field.split(".", -1).all? { |part| part.match?(/\A[0-9A-Za-z-]+\z/) }
  end
end